The 4 showers on my floor didn't work every morning from 07.00 untill 10.00. When I complained about this, I paid 50 pounds per night so I exect to be able to shower in the morning, the reaction from the manager was ' just shower on another floor, when you don't have a shower in your room, you haven't paid for the shower...' .
Again, for 50 pounds a night I found this very poor service and was disappointed to be treated like that. Next time I'm in Edinburgh I will look out for another hostel.